--- /dev/null
+;;; mime-conf.el --- mailcap parser and MIME playback configuration
+
+;; Copyright (C) 1997,1998,1999,2000 Free Software Foundation, Inc.
+
+;; Author: MORIOKA Tomohiko <tomo@m17n.org>
+;; Created: 1997-06-27
+;; Original: 1997-06-27 mailcap.el by MORIOKA Tomohiko
+;; Renamed: 2000-11-24 to mime-conf.el by MORIOKA Tomohiko
+;; Keywords: mailcap, setting, configuration, MIME, multimedia
+
+;; This file is part of FLIM (Faithful Library about Internet Message).
+
+;; This program is free software; you can redistribute it and/or
+;; modify it under the terms of the GNU General Public License as
+;; published by the Free Software Foundation; either version 2, or (at
+;; your option) any later version.
+
+;; This program is distributed in the hope that it will be useful, but
+;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+;; General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Code:
+
+(require 'mime-def)
+
+
+;;; @ comment
+;;;
+
+(defsubst mime-mailcap-skip-comment ()
+ (let ((chr (char-after (point))))
+ (when (and chr
+ (or (= chr ?\n)
+ (= chr ?#)))
+ (forward-line)
+ t)))
+
+
+;;; @ token
+;;;
+
+(defsubst mime-mailcap-look-at-token ()
+ (if (looking-at mime-token-regexp)
+ (let ((beg (match-beginning 0))
+ (end (match-end 0)))
+ (goto-char end)
+ (buffer-substring beg end)
+ )))
+
+
+;;; @ typefield
+;;;
+
+(defsubst mime-mailcap-look-at-type-field ()
+ (let ((type (mime-mailcap-look-at-token)))
+ (if type
+ (if (eq (char-after (point)) ?/)
+ (progn
+ (forward-char)
+ (let ((subtype (mime-mailcap-look-at-token)))
+ (if subtype
+ (cons (cons 'type (intern type))
+ (unless (string= subtype "*")
+ (list (cons 'subtype (intern subtype)))
+ )))))
+ (list (cons 'type (intern type)))
+ ))))
+
+
+;;; @ field separator
+;;;
+
+(defsubst mime-mailcap-skip-field-separator ()
+ (let ((ret (looking-at "\\([ \t]\\|\\\\\n\\)*;\\([ \t]\\|\\\\\n\\)*")))
+ (when ret
+ (goto-char (match-end 0))
+ t)))
+
+
+;;; @ mtext
+;;;
+
+(defsubst mime-mailcap-look-at-schar ()
+ (let ((chr (char-after (point))))
+ (if (and chr
+ (>= chr ? )
+ (/= chr ?\;)
+ (/= chr ?\\)
+ )
+ (prog1
+ chr
+ (forward-char)))))
+
+(defsubst mime-mailcap-look-at-qchar ()
+ (when (eq (char-after (point)) ?\\)
+ (prog2
+ (forward-char)
+ (char-after (point))
+ (forward-char))))
+
+(defsubst mime-mailcap-look-at-mtext ()
+ (let ((beg (point)))
+ (while (or (mime-mailcap-look-at-qchar)
+ (mime-mailcap-look-at-schar)))
+ (buffer-substring beg (point))
+ ))
+
+
+;;; @ field
+;;;
+
+(defsubst mime-mailcap-look-at-field ()
+ (let ((token (mime-mailcap-look-at-token)))
+ (if token
+ (if (looking-at "[ \t]*=[ \t]*")
+ (let ((value (progn
+ (goto-char (match-end 0))
+ (mime-mailcap-look-at-mtext))))
+ (if value
+ (cons (intern token) value)
+ ))
+ (list (intern token))
+ ))))
+
+
+;;; @ mailcap entry
+;;;
+
+(defun mime-mailcap-look-at-entry ()
+ (let ((type (mime-mailcap-look-at-type-field)))
+ (if (and type (mime-mailcap-skip-field-separator))
+ (let ((view (mime-mailcap-look-at-mtext))
+ fields field)
+ (when view
+ (while (and (mime-mailcap-skip-field-separator)
+ (setq field (mime-mailcap-look-at-field))
+ )
+ (setq fields (cons field fields))
+ )
+ (nconc type
+ (list (cons 'view view))
+ fields))))))
+
+
+;;; @ main
+;;;
+
+;;;###autoload
+(defun mime-parse-mailcap-buffer (&optional buffer order)
+ "Parse BUFFER as a mailcap, and return the result.
+If optional argument ORDER is a function, result is sorted by it.
+If optional argument ORDER is not specified, result is sorted original
+order. Otherwise result is not sorted."
+ (save-excursion
+ (if buffer
+ (set-buffer buffer))
+ (goto-char (point-min))
+ (let (entries entry)
+ (while (progn
+ (while (mime-mailcap-skip-comment))
+ (setq entry (mime-mailcap-look-at-entry))
+ )
+ (setq entries (cons entry entries))
+ (forward-line)
+ )
+ (cond ((functionp order) (sort entries order))
+ ((null order) (nreverse entries))
+ (t entries)
+ ))))
+
+
+;;;###autoload
+(defcustom mime-mailcap-file "~/.mailcap"
+ "*File name of user's mailcap file."
+ :group 'mime
+ :type 'file)
+
+;;;###autoload
+(defun mime-parse-mailcap-file (&optional filename order)
+ "Parse FILENAME as a mailcap, and return the result.
+If optional argument ORDER is a function, result is sorted by it.
+If optional argument ORDER is not specified, result is sorted original
+order. Otherwise result is not sorted."
+ (or filename
+ (setq filename mime-mailcap-file))
+ (with-temp-buffer
+ (insert-file-contents filename)
+ (mime-parse-mailcap-buffer (current-buffer) order)
+ ))
+
+
+;;;###autoload
+(defun mime-format-mailcap-command (mtext situation)
+ "Return formated command string from MTEXT and SITUATION.
+
+MTEXT is a command text of mailcap specification, such as
+view-command.
+
+SITUATION is an association-list about information of entity. Its key
+may be:
+
+ 'type primary media-type
+ 'subtype media-subtype
+ 'filename filename
+ STRING parameter of Content-Type field"
+ (let ((i 0)
+ (len (length mtext))
+ (p 0)
+ dest)
+ (while (< i len)
+ (let ((chr (aref mtext i)))
+ (cond ((eq chr ?%)
+ (setq i (1+ i)
+ chr (aref mtext i))
+ (cond ((eq chr ?s)
+ (let ((file (cdr (assq 'filename situation))))
+ (if (null file)
+ (error "'filename is not specified in situation.")
+ (setq dest (concat dest
+ (substring mtext p (1- i))
+ file)
+ i (1+ i)
+ p i)
+ )))
+ ((eq chr ?t)
+ (let ((type (or (mime-type/subtype-string
+ (cdr (assq 'type situation))
+ (cdr (assq 'subtype situation)))
+ "text/plain")))
+ (setq dest (concat dest
+ (substring mtext p (1- i))
+ type)
+ i (1+ i)
+ p i)
+ ))
+ ((eq chr ?\{)
+ (setq i (1+ i))
+ (if (not (string-match "}" mtext i))
+ (error "parse error!!!")
+ (let* ((me (match-end 0))
+ (attribute (substring mtext i (1- me)))
+ (parameter (cdr (assoc attribute situation))))
+ (if (null parameter)
+ (error "\"%s\" is not specified in situation."
+ attribute)
+ (setq dest (concat dest
+ (substring mtext p (- i 2))
+ parameter)
+ i me
+ p i)
+ )
+ )))
+ (t (error "Invalid sequence `%%%c'." chr))
+ ))
+ ((eq chr ?\\)
+ (setq dest (concat dest (substring mtext p i))
+ p (1+ i)
+ i (+ i 2))
+ )
+ (t (setq i (1+ i)))
+ )))
+ (concat dest (substring mtext p))
+ ))
+
+
+;;; @ end
+;;;
+
+(provide 'mime-conf)
+
+;;; mime-conf.el ends here
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